Coating system



March 19, 1929.

J. w.- cosGRovE COA'vlING SYSTEM Filed May 8. 1922 YPatented Mar. 19, 1929. o

' UNITED sTAria;s-

PATENT l ()ilrlrlel JOHN W. eosGEovE, E MEDEOED, MASSACHUSETTS, `As'sreNoE ToY UNITED sHoEMA.

NEW JERSEY, A coEPoEA'rIo-N `,0E .NEW

o CHINE CORPORATION,

J'IEEEtSIdlY.v

OF PATERSON,

' coA'rING SYSTEM. i.

, Application med May s, 1922.` ,serial No. 559,401.

The present invention relates toy systems for coating objects, such, for example, las the soles of rubbers or shoes of the'tennis type, to one side of Which cement is applied before assembling. A popular machine for accomplishing this coating operation 1s that described in the patent in my namenumbered 1,325,623 and dated December 23, 1919.

, Tn this, the cement is applied to the under sides of the work-pieces, advanced horizonf tally, and when the coated pieces are tofbe received by 4a conveyor which Will carry them from the machine and permit them to dry before handling, .the direct delivery to this conveyor results'in the deposit` of the still-fiuid coating upon the vsupporting sur,-

face. This is objectionable, inthat the conveyor takes the cement from the Work-pieces,-

altering the thickness and uniformity ofthe y coating and interfering with the removal of the pieces from the conveyor.. It 1s an object of my invention to provide a system by which work will be coated and delivered, as to a conveyor', Without subjecting the coated surface to any contact. which `will harmfully affect it. v f

In the attainment ofthisobject, a feature .of the invention consists in thecombination with a coating machine, which may include a pair of rolls which coat and advance the Work-pieces, of-novel meansfor invert.- ing said pieces. To thisinverting means, which may consist of a movable member, as a conveyor, a coated object Vis delivered by through a substantial space, .so that'it turns in its descent from the coating-applying member, and an extremity only initially contarts with the member which,yin its movenient, efl'ectsl the inversion. This inverting member preferably travels inthe opposite direction to the applying surface at ythe coating machine, and'may serve asta conveyorupon which the uncoated surfaces of thc \\'oil{-pieces rest, it being, for this purpose, in the form of a belt. .It isherein shown as delivering to another conveyor, which is movable transverselyof it and at a different rate of speed, preferably more slowly. Thisrelation is because the rapidly moving conveyor most effectively causesthe inversion of the objects by its engagement 'to Ifthe. inverting member.

a machine, it preferably falling by gravity with their ends, and because, Whileithe ob- ]ects extend*longitudinally'of the inverting conveyor, they lie transversely of the receiving conveyor, and occupylesssp'ace in Y the direction of itslength.

Some of the objects may be projected from the coating machine at a velocity too great,

if left uncontrolled, to be properly presented diiiiculty, I interpose 'between` the coating machine and the Vinverting means, novel To obviate this means. for modifying the movement of the v object, -as by changingl its direction. One form' which this modifying means. may as-y sumeis that of a member having awall vsituated in the. path of advance ofthe coated objects, and being inclined downwardly and outwardly therefrom. This, if the object issuing from the coating machineis thrown far enough to strike it, vwill in itself tend to act as an inverting means, and will at by the inverting conveyor. To modify the movement ofthe coated object in another manner, I kmay employ'means, situated between the coating and inverting means, for The retardmg force retarding said object. may be exerted by a lmember extendin transverselyA of the direction of radvance o V vvthe coated object and with Which it contacts.

leasti'nsure proper'engagement of the object In the advance of the coated pieces,it is `"desirable to transferthem from a'conveyor,

as. that by `which they are inverted, to a re ceivingsurface.which maybe furnished by another-conveyor. Upon the first conveyor the pieces rest With their coated sides uppermost; but when delivered by it, if they vare fi `so flexiblev thaty they bend easily, the forward 'endsy may'curl under sufficiently to cause thev coated sides to come in contact 'with` the receiving surface. To guard against this, an additional feature of the invention `resides in means arranged to vary the relation of the delivery-end of the conveyor to the receiving surface. By increasing, for'example,the upward angleof the conveyor, as @by changing the position of the frame in which it-is mounted, the effect of the distortion of the objects may be counteracted, so that they will be deposited accurately with their uncoatcd sides downward.

A particular embodiment of the invention is illustrated in the accompanying drawing,

Figure 1 showing my improved system in side elevation, parts beingomitted; and

Fig. 2 representing the system in end elevation.

At A appears a coating machine of the kind previously mentioned, this having a cement-tank 10, in which operates an applying roll 12 with its periphery projecting above the top of the tank for contact with the work. The roll is fixed upon a horizontal shaft journaled in the walls of the tank and driven-with its co-operating pressureroll, which appears at 13 in Fig. 2, through gearing 14 and a counter-shaft 16 from a motor 18. VAlill these mechanisms may be mounted upon the top of a suitable frame 20. In using this machine, the shoesoles S orother work-pieces are advanced by the operator over the applying roll and beneath the pressure-roll, they being coated on their under sides with the cement broughtv up from the tank by the applying roll. These two rolls, in their rotation, deliver the coated pieces upon a grid 22 consisting of parallel bars having reduced upperedges, which lie in a horizontal plane in substantial aline- Ament with the bite of` the rolls. Over the grid the pieces pass and are projected into a space partially enclosed by a guard member 24. This is in the form of a vertically extending conduit, open at `its inner side nextV to the cementing machine and at its lower eXtremity,^and secured at 26 to the frame. The outer wall 28 of the guard member, opposite the .path of the soles discharged by the cementing machine over the grid, is vinclined outwardly and downwardly, it preferably being curved upon the arc of a circle of considerable radius. For the normal delivery of the work, the wall 28 is far enough removed from the cemcnt-apply ing roll so that the soles do not contact with it. lf, however, they are long or are discharged from the machine at an unusual velocity, the forward ends may strike the curved wall. -ThisV not only retains them against being thrown too far to ybe delivered to the succeeding mechanism, but also tends to deflect the forward extremity` of each piece downwardly and rearwardly, so that at least a partial inversion. of the piece occurs.

Carried at the lower extremity of the guard are side frames 30, 30, at the opposite ends of which are journaled shafts 32, 32, each of which carries a roll 34. Over these rolls operates a soleinverting conveyor-belt 36, the upper conveying runy of which is approximately horizontal. The lower run travels at opposite sides of guide-rolls 38 `of the applying roll.

and 40, the latter being movable to vary the tension of the belt. This change in position may be effected by mounting the roll 410 upon a yoke .ll2-pivoted at le on the frames 3) and having fixed to its pivot-shaft an arm d6 larrying a weight 18. The weight acts to turn the yoke to the left, as viewed in Fig. 1 of the drawing, forcing the Vroll l() yieldably against the outside ofthe belt 36 ,and maintaining its upper run taut. The belt 36 is driven as indicated by the arrow (Fig. 1), this being oppositely to the upper applying surface of the roll 12, and consequently to the direction of emergence of the workpieces from the cementer, and` at a considerable rate of speed by a pulley' 50 fixed upon the forward shaft 32 and belted to a pulley 52 secured upon the counter-shaft 16. rrFhe pulleys 56 and 52 are shown as oppositely stepped, permitting a variation in the speedV of the conveyor-belt. The soleengaging surface of the belt 36 is located at a substantial distancebelow the line ofY projection of the soles from the cementing machine, so ythat in falling they change from the horizontal position in which they issue fromv said machine to an approximately vertical position, causing the forward eX- tremity only of the sole to strike the rapidly moving surface of the belt. This draws the contacting end of the sole quickly to the right, as viewed in Fig. 1, swinging the unvcoated surface, which was uppermost at the cementing machine, downwardly, so that itrests uponthe belt, the `cemented side now being up. y f

ASometimes the soles operated upon are flexed upwardly at the toe as they issue .from the cementing machine. This may be caused by the practice-of operators of bending the soles in the hands before they feed them to the cementer. When soles thus curved are long, or are thrown from the machine at a Vhigh velocity, the bent ends may strike the wall28, and instead of being deflected downwardly will be turned in the opposite direction. This brings what was the rear extremity of the soletothe front in falling through the guard-conduit, with the coated side tothe left (Fig. 1), rather than to the right, asis the case in the normal descent of the work. Consequently, the effect ofthe ,belt 36 is to throw the coated side down,

leading to the result which it is a purposeof this system to prevent. To avoid this, there is arranged between the grid 22 and the wall 28 of the guard member a bar 54e, the upper edge of which is located in approximately the same horizontal plane as the grid, and which extends transversely to the direction of movement of the work-pieces from the cementer, substantially parallel to the aXis The bar is shown as carried in alined depressions 56, 56 formed in varms 58, 58 projecting forwardly from llO the soles that they will be engaged by the belt 36 when theyare in substantially-vertical positions, with their cemented surfaces to the right, to be inverted, uncoated side down, upontlie belt. As herein illustrated, there'are two pairs ofbar-supporting depressions L5 6 provided, enabling` said bar to bev differently spaced from'the bite of the applying and pressure-rolls; tering the position, the besteffectmaybe attained, considering the length of the lsoles and the operating conditions. p

After the successively cemented soles have been deposited yend to end upon the belt 36 with their uncoated sides upward, theyare delivered .to a receiving surface, preferably furnishedby a conveyor-belt 60, whichis shown extending beneath the forward extremity of the belt 36' `and atv right angles thereto.l This belt .is mounted upon opposite rolls 62, 62 carried by shafts 64, 64 rotatable at the opposite extremities of ythe frame- 20. I prefer to mount thel shafts 64 upon pairs -of arms 66, 66 pivoted for independent movement at 68 and held 'adjustably in position by pairs of screws 70, 70

threaded through the arms at each side of j their; pivots and` bearing against adjacent surfaces of the frame. By a variation in the angles of these arms, not only may the belt 60 be keptiproperly tightened, butby dif-` ferently positioning the arms ofV either' pair, the tension at opposite sides of the belt may be changed to cause it to run to the best ad'- vantage upon the rolls; ThisI is of especial utility, since it is sometimes diicult to obtain belts which are of uniform length at the opposite sides. The conveyor-belt 60 is driven to move in thedirection of the arrowin Fig. l, with its upper conveying run traveling from the belt 36, by a pulley 72 secured upon the end of the shaft of the applying roll 12, this being belted to' affpulley 7 4 upon one of the shafts 64. -Since-thepulleys 72 and 74l are in planes atright angles Lto each other, the belt connecting them turns through 90 degrees, being guided by three intermediatepulleys 76, 76, 76, which. are mounted f to rotate upon a bracket 77 rising fromthe frame 20. The speed at which the be'ltf60 is driven yis preferably less than that of the inverting belt 86, -since thev former acts purely as a conveyor, and-since upon it the soles occupy positions side by side, instead'of'in longitudinal alinement, so thattheymay be .more closely placed. This conveyor 60 may be that upon which the soles are carried for a considerable distance to permit the cement upon them to set, but preferably is `compar- By thus alatively short, and-delivers to a'd'rying con- .x'rcyor,lwhich is notl herein illustrated.

lThe lsoles orother work-pieces may be so flexible that when they fall from the belt 36, impelled from it .by ,its considerable speed of travel, their forwardextremities will be bent downwardly by gravity 'and by the resistance of the air, so that-*instead of the uncoated lower side coming `into contact with the belt 60, the curved-over coated' forward end Vwillstrike said-eonveyor, lcausing' the piece to be again inverted, now inthe wrong direction,

with the coated side downward. This bending Iovercomeby varyingl the position of the belt 36 with relation to 60; lFor vthis purpose, the frame 30 is vadjustably supported at convenient points, as upon the lower. portion andat opposite sides of the guard member 24,2by means here shown as allowingbotli vertical and horizontal movement and permitting the delivery-end of the belt 36 to bek adjusted toward and from the conveyor-belt 60, transversely of its supv porting surface and at different angles thereto'. This may be attainedv bypassing securing bolts 78 for the frames 3() through horizontal slots 8O `-in the frames 30 and intersectingvertical slots v82 in the member 24. Obviously, by loosening these bolts,` the frames may be sliiftedhorizontally by vir.-l

tue of the movement of the slot-s 80 along the bolts, and vertically by the travel of thev bolts in the slots 82, .while ldifferent movements at the opposite ends-of the frames change the angular relation. y' For example, by raising the opposite end, the soles as delivered will be thrown upwardly, so thatv the tendency )nu 4the delivery-end of the belt 36 higher than f of the forward'extremities to turn over into contact with the-belt60 will be counteracted.y

lVOreQver, by the horizontal adjustment, the relation ofthe delivery-end of the belt 36 across `the, belt 60`n'iay be inade such as to disposethe soles on the latter to the best advantage. f

Y `To briefiy outlinethe operation of the systeni, the soles fed by the operator tothe ceinenting machine A' are coated'by the roll 12 uponv their under sides',-and by it and lthe associated vpressure-'roll arer impelled 'across thegrid and the retarding member 54,if'the use of this latter is desirable. Enteringthe spaceV within thewguard 24- and deflected-i downwardly by the wall 28, if their travel is such as to-cause contact therewith, they turn from the horizontal to a vertical position, and come in contact with the rapidly movi-ng upper surface of the belt- 36. This turns each' sole about thepoint of initial Contact .at its extremity, bringing the uncoated side downupon lthe belt, which deliversit from the endbeneath the cementer upon the conveyor '.60 running at kright angles ito the inin its angular relation and across'the converti'ng conveyor. The latter is so positioned K veyor that the soles fall upon this second conveyor with. the coated sides still up and in the desired transverse relation, and are carried out of the system fordrying and assembling for future operations.

Having described .my invention, what I claim as new and desire to secure by Letters Patent of the Unit-ed States is:

1. In a coating system, the combination of a coating mechanism and an inverting member separated from the coating mechanism by an open space immediately beneath and beyond said coating mechanism, said mechanism being constructed and arranged f to project coated objects into -the space, and

through the space from the coating mechanism.

3. In a coating system, the combination of coating mechanism having immediately beyond and beneath it an open space, said mechanism being constructed and arranged to project coated objects into the space, an endless traveling inverting member situated at the bottom of thc'space and into contact with which fall the edges of the objects first emerging from the coating mechanism, and means for moving the surface of the inverting member with which the falling objects contact in the direction opposite to that in which they are projected from the coating mechanism.

4f. Inv a cementmg system, rotatable cementing rolls having immediately beyond and beneath them an open space, said rolls being constructed and arranged to project cemented objects into the space, an inverting wall against which the objects are projected by the rolls, said wall being inclined forwardly in the direction of projection of the objects and downwardly from the horizontal and arranged to deflect rearwardly object-edges first emerging fromthe cementing rolls as said objects travel through the space from said rolls, an inverting conveyor situated at the bottom of the space and into Contact with which fall the edges of objects first emerging from the cementing rolls, and means for moving the surface of the inverting conveyor with which the falling objects contact in the direction .opposite tov that in which they are projected by the cementing rolls. i

5. In a coatingsystem, the combination of coating mechanism having immediately beyond and beneath it an open space, said are projected from the coating' mechanism,

and means arranged to vary the direction in which the endless inverting member travels.

6. In a cementing system, rotatable cementing rolls havingimmediately. beyond and beneath them an open space, said rolls being constructed and arranged to project cemented objects into the space, an inverting wall against which the objects are projected by the rolls, said wall being inclined forwardly in the direction of projection ofthe objects and downwardly from the horizontal and arranged to deflect rearwardlyv objectedges first emerging from the cementing rolls as said objects travel through the space from said cementing rolls, an inverting conveyor situated at the bottom ofthe space and into contact with which fallthe edges of objects first emerging from the ycementing rolls, a frame upon which the inverting conveyor is mounted, and means arranged to vary the position of the 4frame both vertically and horizontally.

7. In a coating system, the combination of a coating mechanism'and an inverting member separated from the coating mechanism by an 'open space immediately beneath and beyond said coating mechanism, said mechanism being constructed and arranged 'to project coated objects into the space, said inverting member being arranged to contact Vwith the object-edges first emerging from the coating mechanism, and a contact member spaced from the coating mechanism and arranged to turn down the forward ends of the objects upon their emergence yfrom said coating mechanism and before they receive the action of the inverting member.

8. In a coating system, the combination of a coating mechanism and an'inverting member separated from the coating mechanism by an open space immediately beneath and beyond said coating mechanism, said mechanism being constructed and arranged to project coated objects into the space, said inverting member being arranged to contact with the object-edges first emerging from the coating mechanism, and a retardingmember situated between the coating mechanism and the inverting member and arranged to Contact with the under sides of' the objects as they are projected from the coating mechanism. e

9. In a coating system, the combination of a coating mechanism and an inverting member separated from the coating mech' anism by an open space immediately beneat andy beyond said coatingk mechanism, said mechanism being constructedand arranged to project coated objects into the space,said inverting member being arranged to contact coating mechanism, a bar With' which the under sides of the 'objects' Contact upon their emergence from the coating mechanism, and 15 means arranged to permit the distance of the bar from the coating mechanism to be varied. I I

In testimony whereof I have signed my name to this specification.

JOHN W. cosGRovE@ 

